Circuits & Schematics: -Wire Barometer 5/10 Volt Design vrs - 2

11. Precision programmable current sink
    Stephen Woodward
    Circuits Analogue Design Supply Diodes TL431
    .. the 431’s “anode” pin sinks to the same lowly fate. It gets grounded. Current sink regulation The design idea presented here offers that poor persecuted pin a more buoyant role to play, Figure 1. Figure 1. The ...
    May 22, 2025

12. A two-way mirror - current mirror that is
    Stephen Woodward
    Circuits Analogue Design Oscillators Texas Instruments LMC555
    .. mirror. The dim side is the witness’s window. So, what does that have to do with electronics? This simple design idea describes a two-way current mirror that, in dubious analogy to the optical kind, can mirror or transmit ...
    May 22, 2025

13. Seven-octave linear-in-pitch VCO
    Stephen Woodward
    Circuits Oscillators Texas Instruments LMC555 SN74HCT74
    .. contributor Nick Cornford recently shared design ideas incorporating cool circuits for linear-in-pitch voltage-controlled oscillators (LPVCOs): Revealing the ...
    May 21, 2025
14. Another PWM controls a switching voltage regulator
    Christopher Paul
    Circuits Supply Texas Instruments SN74LVC2G14 SN74LVC14A TLV333
    .. recent Design Idea, “Three discretes suffice to interface PWM to switching regulators”( Reference 1 ), ...
    May 20, 2025
15. A simple circuit to let you characterize JFETs more accurately
    Cor van Rij
    Circuits Analogue Design Measurement Texas Instruments TL071A
    .. to create universal test sockets for bipolar transistors, of course. In closing Thanks to John Fattaruso for his excellent design idea, which sprouted this idea! We all stand on the shoulders of the giants that came before us. Reference ...
    May 15, 2025
16. Circuit delivers constant power to a load
    Kiril Karagiozov
    Circuits Supply Texas Instruments NE555
    .. is reached is equal to: A lower threshold value V C results in higher overshoot for the same comparator speed. The Design Idea in Figure 2 shows one possible implementation. A 555 provides switches, a comparator, and logic. The ...
    Apr 29, 2025
17. Another simple flip ON flop OFF circuit
    Jayapal Ramalingam
    Circuits Supply Texas Instruments CD4024B CD40106B
    .. 1 gives a simple circuit for the PUSH ON, PUSH OFF function with only a few inexpensive components. In this design, the output is connected to the input of the gadget when you press the push button (PB) once. For the next ...
    Apr 28, 2025
18. LM4041 voltage regulator impersonates precision current source
    Stephen Woodward
    Circuits Supply Analog Devices LM4041
    .. rather um “mature”, must have untapped potential for doing something that doesn’t start with voltage. The Design Idea (DI) presented in Figure 1 offers the 4041 a usual, possibly weird, maybe even new role to play. ...
    Apr 27, 2025
19. Reduce EMI by sweeping a power supply's frequency
    John Betten
    Circuits Supply Texas Instruments TL331 UCC3813N-0
    .. path back to the noise source. The larger the noise, the greater the size, expense, and difficulty of the filter design. Power supplies that operate at a fixed frequency have their largest EMI emission at this fundamental, fixed ...
    Apr 22, 2025
20. Water-leak detector uses 9V batteries
    Yongping Xia
    Circuits Measurement Analog Devices MAX934
    .. previously published Design Idea describes a practical gadget that has the potential to save a lot with little investment ( Reference 1 ...
    Apr 18, 2025

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